Parse ArrayTypes (#1364)

The following formats are supported:

* (type (array i32))
* (type (array (field i32)))
* (type (array (field (mut i32))))

This PR adds support for reading/writing binary and text, but no
interpreter support yet.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/binary-writer.cc b/src/binary-writer.cc
index bd285599..6c0a73db 100644
--- a/src/binary-writer.cc
+++ b/src/binary-writer.cc
@@ -915,6 +915,15 @@ Result BinaryWriter::WriteModule() {
           }
           break;
         }
+
+        case TypeEntryKind::Array: {
+          const ArrayType* array_type = cast<ArrayType>(type);
+          WriteHeader("array type", i);
+          WriteType(stream_, Type::Array);
+          WriteType(stream_, array_type->field.type);
+          stream_->WriteU8(array_type->field.mutable_, "field mutability");
+          break;
+        }
       }
     }
     EndSection();